The Punjab National Bank has told police that it has uncovered additional exposure of about Rs 9.42 billion ($145.2 million) in connection with a massive alleged fraud, according to a court filing seen by Reuters.In what has been dubbed as the biggest fraud in India’s banking history, PNB, the country’s second-biggest state-run lender, said last month it had been defrauded of about $2 billion by two jewellery groups who raised credit from overseas banks based on fraudulent guarantees issued in collusion with rogue PNB staff.ALSO READ: PNB will pay lenders Rs 60 bn that Nirav Modi owes, but with conditions